Gas monitor



FIG. 1 is a lower, front, right side perspective view of a gas monitor, showing my new design. The broken lines indicating a electrical cable are shown for illustrative purposes only;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a gas monitor, as shown and described. 